But in the past few years, something has shifted: the technology is now surprisingly mature.
但在过去几年内，事情发生了变化：这项技术已经变得非常成熟。
Something has shifted inside her after the loss of her own son, who died while his bosses looked the other way.
她儿子死于非命，但老板们对此置若罔闻。自从他失去自己的亲儿子，她内心发生了一些变化。
Or, to put it another way, though we rarely wake up in the morning to find our world has totally changed, we always come to realise, after a period of time, that something significant has shifted.
或者，换句话说，虽然我们很少上午醒来发现我们的世界已经完全变了，但是一段时间后我们总会意识到这些重大的转变。
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